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University of Agricultural Sciences, Bengaluru

University of Agricultural Sciences Bangalore, a premier institution of agricultural education and research in the country, began as a small agricultural research farm in 1899 on 30 acres of land donated by Her Excellency Maharani Kempa Nanjammanni Vani Vilasa Sannidhiyavaru, the Regent of Mysore and appointed Dr. Lehmann, German Scientist to initiate research on soil crop response with a Laboratory in the Directorate of Agriculture. Later under the initiative of the Dewan of Mysore Sir M. Vishweshwaraiah, the Mysore Agriculture Residential School was established in 1913 at Hebbal which offered Licentiate in Agriculture and later offered a diploma programme in agriculture during 1920. The School was upgraded to Agriculture Collegein 1946 which offered four year degree programs in Agriculture. The Government of Mysore headed by Sri. S. Nijalingappa, the then Chief Minister, established the University of Agricultural Sciences on the pattern of Land Grant College system of USA and the University of Agricultural Sciences Act No. 22 was passed in Legislative Assembly in 1963. Dr. Zakir Hussain, the Vice President of India inaugurated the University on 21st August 1964.

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2004 - 20072
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Subject: Sericulture × Author: K. HADIMANI, DURAGAPPA × Start date: 1978 ×
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    ThesisItemOpen Access
    SENSITIVITY OF IMPROVED BREEDS AND HYBRIDS OF MULBERRY SILKWORM TO BmNPV AND MANAGEMENT PRACTICES
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE, 2007-06-06) K. HADIMANI, DURAGAPPA; DEVAIAH, M. C
    Sensitivity of four improved breed s (CSR2, CSRt, MH\, BL43) and five hybrids of mulberry silkworm (CSR2 x CSRt, CSR4 x CSR2, MH) x CSR2, BL43 X CSR2 and PM x CSR2) with two concentration (10-3 and 10-6 PIBs) ofBmNPV were tested under laboratory condi tion s. The ET50 for symptom ex pression and ET50 for mortality were min imum in CSR2 when inoculated with BmNPV, while the same were maximum in PM x CSR2. The ERR was significantly maximum in PM x CSR2 and it was minimum in CSR2 when treated with BmNPV. The cocoon traits (cocoon, pupal and shell weights) except shell ratio were found to be nonsignificant in improved breeds and hybrids of silkworm when inoculated with BmNPV. Among the improved breeds and hybrids of silkworm, the cocoon filament length and cocoon fila ment weight were significantly maximum in CSR2. The cocoon filament length and cocoon f lament weig ht were significantly minimum in MH) x CSR2• Among the concentrations of PIBs, ET50 for symptom expression was less but ETso for larval mortality was minimum at 10-3 PIBs Iml with reduced econonuc parameters. The consumption, digestion an.d consumption indices were significantly minimum among .BmNPV inoculated batches compared to non-inoculated ones, irrespective of breedsl hybrids and PIBs concentration both ~uring fourth and fifth instars. The total "protein, total carbohydrate and free amino acid contents of haemolymph, the digestive amylase activity, gut and haemolymph pH were greatly altered in BmNPV infected worms compared to untreated worms. The silkworms (CSR2 x CSRt) reared on mulberry leaves dipped in aqueous leaf extracts of Psoralea 'cory leifolia L. @ 800 ppm was found effective in reducing the larval mortality due to BmNPV (10-3 PIBs) infection besides enhancing the economic traits of silkworm.
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    ThesisItemOpen Access
    IMPACT OF LEGUME INTERCROPPING IN PAIRED ROW OF MULBERRY ON SILKWORM
    (UNIVERSITY OF AGRICULTURAL SCIENCES BANGALORE, 2004-01-21) K. HADIMANI, DURAGAPPA; K. HADIMANI, DURAGAPPA; PATIL, G.M; PATIL, G.M
    A field experiment was conducted at Main Research Station, Dhar^'ad from June to November, 2001 under irrigated conditions to study the impact of legume intercropping in paired row [(60+120 cm)x30 cm] of S41 mulberry and its effect on silkworm [Bombyx mori L.). There were seven treatment combinations with three legumes in two row proportions laidout in a randomized complete block design with three replications. A laboratory experiment was also conducted during rainy season (from 18^ August to 21®^ September, 2001), to study the silkworm growth and cocoon yield. At 60 days after pruning sole mulberry recorded significant increase in plant height (159.00 cm), number of branches (13.33/plant), number of leaves (121.41/plant), leaf area index (13.83) and leaf yield (295.48 g/plant and 10.93 t/ha/crop). Among the intercropping treatments, mulbeny+soybean two rows (9.73 t/ha/crop) recorded significantly higher mulberry leaf yield, Among the intercropped legumes, soybean three rows recorded significantly higher pod number (90.53/plant), hundred seed weight (11.44 g) and seed yield (1200 kg/ha). Performance of silkworm (NB4D2) showed non-significant difference with respect to larval characters. Silk productivity (4.81) and silk gland weight (1.57 g) were significantly higher in mulbeny+soybean (three rows). 85.66 per cent ERR was recorded in mulbeny+soybean (two rows). Cocoon yield and grainage parameters (except fecundity) were non significant. Whereas, cocoon characters differed significantly. However, higher shell percentage (18.94) in mulbeny+soybean (two rows), least denier (2.16) in mulberr^'+greengram (two rows) and mulberry+blackgram (two rows) and higher renditta (9.54) in mulberry+greengram (three rows) was recorded. The incidence of flacherie, grasserie and muscardine (all the instar worms) in intercropping treatments was less compared to sole mulberry. The overall average evaluation index value for all traits viz., silk gland weight, silk productivity, ERR, fecundity, shell ratio and renditta was higher in mulberry+three rows of soybean (50.12) while it was least in sole mulbeny (49.85). Mulberry+greengram three rows recorded significantly higher net returns (Rs.50,129/ha/crop) and B:C ratio (4.28).